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| Q. |
An aircraft can perform aerobatic manoeuvres in a vertical loop because of- |
| A. | gravity |
| B. | centripetal force |
| C. | weight |
| D. | centrifugal force |
| Answer» A. gravity | |
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Explanation: It happens because of gravity. A key feature of super maneuvering aircrafts is a high thrust-to-weight ratio; that is, the comparison of the force produced by the engines to the aircraft's weight, which is the force of gravity on the aircraft. |
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